Checklists for software errors, setup, and tool workflows.

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Latest checklists

If you're on a modern Linux distribution and try to install a Python package with pip, you ma...

If Windows Explorer (the desktop, taskbar, and file manager) keeps restarting, you'll see the...

You run git push and get: ! [rejected] main -> main (non-fast-forward)

Fix 'Git Remote Origin Already Exists' Error
When you try to add a remote named 'origin' but Git tells you it already exists, it's...

Fix VS Code Git Authentication Failed After Update
After updating Visual Studio Code, you may see an error like "Git: Authentication failed"...

Fix Git Push Rejected: Non-Fast-Forward Error
You try to push your local commits to a remote Git repository, but Git refuses with: ! [rej...